Machine for molding incandescent-lamp sockets.



Patented Aug. I9, |902.

SOCKETS.

l 2 Sheets-Sheet l.

C. A. CHASE.

MAGHINE FUR HOLDING INGANDESCET LAMP (Appumion mea um. 2o; 1902.)

(N0 Nudel.)

Patented Aug.4 I9, |902. C. A. CHASE. I

(Application filed. Har. 20, 1902.)

2 Sheets-Sheet 2.

MACHINE 'FOB HOLDING INCANDESGENT LAMP SOGKETS.

.(No Model.)

UNTTED STATES PATENT OFFICE.

CHARLES A. CHASE, CF CHICAGO, ILLINOIS.

MACHINE FOR IVIOLDING lNCANDESCENT-LAIVIP SOCKETS.

SPECIFICATION fOlmIlg part 0f Letters Patent NO. 707,299,2Cla15ed August 19, 1902.

Application filed March 20, 1902. Serial No. 99,125. (No model.)

To all whom tm/Ly concern:

Be it known that I, CHARLES A. CHASE., a citizen of the United States,residing at.Chi cago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Machines for Molding Incandescent-Lamp Sockets, of which the following is a'specication.

Myinvention relates to a machine for molding incandescent-lampsockets, and has for its object to provide certain improvements in such a machine, as will be hereinafter described.

Figure l is avertical section. Fig. 2 is an inverted plan of the lower plate with parts shown in dotted lines. Fig. 3 is a detail side view of the upper die. Fig. 4 is an elevation of saine looking in the direction of the arrow in Fig. 3. Fig. 5 is an inverted plan view of the same. Fig. 6 is a detail cross-section of the lower die. F'ig. 7 is a plan View of the same.

Like parts are indicated by the saine letter in all the figures.

A A are frame-plates joined by the standards B B to hold the several parts in proper relation to each other'. y

C is an arm rising from the upper plate, on which is pivoted the lever C', which lever is part of the operating mechanism and isoperated in any desired manner to raise' and lower the plunger C2,'which is guided in the upper plate A and provided with the pin C3 to engage the slot C4 in the lever C. To this plunger is secured-for example, by the vpin C5-the bodyD ot' the upper die. This body D is provided with the central hole D',.ther downwardly-projecting pin-like part D2, with the tip D3 thereon, the downwardly-projecting part D4, and the downwardly-projecting part D5,

D6 and D7 are downWardly-projectin g parts. D8 and D9 are also downwardlyprojecting portions. The projection vD5 is an extension of projection DS.

The mold proper is formed by the body E, supported on the Iiange F, which is bolted at F F to the plate A. The lower die is coinposed of several portions.

G is a central rod-like part carrying at its lower end the collar G and having the groove G2 to receive the nger G2 on the bar G4, which is secured at G5 to the downwardlyprojecting yoke or pocket G, attached at Cr7 G7 to the plate A. This rod carries at its upper end the plate G8, with the enlarged portion Gr9 and the upwardly-projecting part G10 and also the upwardly-projecting part G11.

It is surrounded by the cylinder J, having the corrugations J and keyed at J 2 to the bevel-gear J3, whichl gear is formed on the hub J4 and rests on the lower end J5 of the yoke or pocket G6. The cylinder J is screwthreaded at JG and provided with the stopcollar J 7, iiXed by the set-screw J s. Thus the rod G and the cylinder J move together vertically, but rotate one upon the other.

K is a crank-shaft carrying the hub K', secured to it by the pin K2, and on the outer edge of the hub is the bevel-gear K3 toengage the gear JS and drive the same. The shaft K is supported in bearings in the side of the yoke Gr6 and in the arm K4. A sleeve L surrounds the cylinder J and is provided with laterally-projecting lugs L L to engage the slots L2 L2 in the bifurcated end of the elbow crank-lever L3, which is pivoted at L4 to the arm L5, secured at L6 in the yoke.

I have shown the particular form of dies which I employ in the manufacture of my peculiar socket; but it is obvious that these die forms may vary somewhat from that which is above shown. I do not, therefore, wish to be limited to the precise form, construction, and arrangement of the parts which Ihave shown. The upper die, broadly speaking, consists of a portion which descends into the mold, in this case the bottom o f the socket, and which is adapted tofreceive the upwardlymoving portion of the lower die, which is intended to form the top of the socket. The lower die comprises movable parts, particularly two parts, which reciprocate together, but rotate one on the other. It may also and in this case does have a third part, which reciprocates on the otherparts.

The use and operation of my invention are as follows: With a device constructed substantially as shown the several parts will be arranged and adjusted so that when brought together into position for forming the molded IOO article, as shown in Fig. l, they will take their l terial, when the upper die may be brought down upon the lower until the parts are in the position indicated in Fig. l. IIere the molding process takes place. The first thing to do is then to raise the upper die, thus eX- posing the uppermost portion of the finished socket. By now turning the crank K the cylinder .I will be rotated by meansof the gears, and since its exterior surface is screw-threaded it will begin to travel. The parts are so related that it will travel downwardly in such a way as to screw the corrugated screw-threaded portion J out of the socket, the cylinder J rotating and moving downwardly at the same time. The same motion of course draws down the rod G, with all its accompanying projecting irregular upper surfaces. It does not rotate, because of the engagement of the finger G3 with the groove G4, and hence it is drawn away directly from engagement with the parts which it has assisted in forming. By operating the elbow crank-lever L3 the sleeveL may be raised and the tinished socket thus be lifted out of the mold, where it may be removed by the attendant. It will be observed in following this procedure that the arrangement ot' parts is such that when operated the following process is carried out: Assume, first, that the socket has been molded. The first step is to rotate and withdraw at the same time that portion of the mold which has the screw-threaded corrugation on it. In the second place, preferably simultaneously therewith, that portion of the mold which has two irregular surfaces is withdrawn, but not rotated. In the third place the upper mold is lifted out of the way, although this step might be taken at any other point in the process. This, of course, is not rotated where its lower surface is broken up into such irregularities as those shown. The last step is to lift the iinished product out of the mold.

Broadly speaking, my invention contains, among other things, what I have called a mold-shell and dies,at leastone of them a duplex die, and devices for reciprocating and rotating the portions of such duplex die one on the other.

I claim- 1. In a machine for molding incandescentlamp sockets, the combination of a mold-shell with two dies which approach each other within the shell, one of said dies duplex and containing parts one of which reciprocates and rotates while the other reciprocates but does not rotate.

2. In a machine for moldingincandescentlamp sockets, the combination of a mold-shell with two dies which approach each other within the shell, one of said dies duplex and containing parts one of which reciprocates and rotates, while the other reciprocates but does not rotate; the other of said dies adapted to reciprocate but not rotate.

3. In a machine for molding incandescentlamp sockets, the combination of a mold-shell with two dies which approach each other within the shell, one of said dies duplex and containing parts one of which reciprocates and rotates while the other reciprocates but does not rotate, and an additional die-piece which forces the nished product out ot the mold.

L1. In a machine for moldingincandescentlamp sockets, the combination of amold-shell with two dies which approach each other within the shell, one of said dies duplex and containing parts one of which reciprocates and rotates while the other reciprocates but does not rotate, and one of which forces the finished product out of the mold, and an opposed die which reciprocates but does not rotate.

5. In a machine for molding incandescentlamp sockets a die having three parts, concentric with each other, the intermediate part adapted to rotate while it reciprocates, the other parts adapted to reciprocate only.

6. In a machine for moldingincandescentlamp sockets a die having three pants, concentric with each other, the intermediate part adapted to rotate while it reciprocates, the other parts adapted to reciprocate only, and an opposed die-surface which recprocates only.

7. In a machine for molding incandescentlamp sockets a mold-shell with dies to form the socket within the mold-shell, and means for withdrawing both of said dies and a die portion adapted to be reciprocated to remove the finished socket from the mold.

S. In a machine for molding incandescentlamp sockets the combination with the mold and opposed die of a duplex die portion having a cylinder the upper end of which forms the inner screw threaded surface of the socket, with an interior die portion adapted to be rotated on by the cylinder but to travel with the cylinder and having an upper surface which forms the irregular parts of the socket, the inner portion held from rotation but free to reciprocate, the cylinderprovided with means for making it rotate when it is reciprocated. Y

9. In a machine for molding incandescentlamp sockets the combination with the mold and opposed die of a duplex die portion having a cylinder the upper end of which forms the inner screw threaded surface of the socket, with an interior die portion adapted to be rotated on by the cylinder but to travel with the cylinder and having an upper surface which forms the irregular parts of the socket, the inner portion held from rotation but free to reciprocate, the cylinderprovided with means for making it rotate when it is reciprocated, and an exterior reciprocating cylinder for lifting the finished product from the mold.

CHARLES A. CHASE. Witnesses:

HOMER L. KRAFT, EDWARD T. WRAY.

IIO 

